Name: Máy hiện sóng số GWinstek GDS-3254 (250Mhz, 4 CH,5Gsa/s)
Brand: GW INSTEK

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	GDS-3152	GDS-3154	GDS-3252	GDS-3254	GDS-3352	GDS-3354	GDS-3502	GDS-3504
Vertical Sensitivity
Input Channels	2Ch+EXT	4Ch+EXT	2Ch+EXT	4Ch+EXT	2Ch+EXT	4Ch+EXT	2Ch+EXT	4Ch+EXT
Bandwidth	DC~150MHz(-3dB)		DC~250MHz(-3dB)		DC~350MHz(-3dB)		DC~500MHz(-3dB)
Rise Time	2.3ns		1.4ns		1ns		700ps
Vertical Resolution	8 bits
Vertical Resolution @ 1MΩ	2mV~5V/div
Vertical Resolution @ 50/75Ω	2mV~1V/div
Input Coupling	AC, DC, GND
Input Impedance	1MΩ// 15pF
DC Gain Accuracy	±(3% X \|Readout\| + 0.1div + 1mV)
Polarity	Normal, Invert
Maximum Input Voltage @1MΩ	300Vrms, CAT I(300Vrms CAT II with GTP-151R/251R/351R/501R 10:1 probe )
Maximum Input Voltage @50/75Ω	5 VRMS max, CAT I
Offset Position Range	2mV/div ~ 100mV/div : ±0.5V ;200mV/div ~ 5V/div : ±25V

Bandwidth Limit	GDS-3152/3154:20MHz (-3dB)		GDS-3252/3254: 20MHz/100MHz (-3dB)		GDS-3352/3354: 20MHz/100MHz/ 200MHz (-3dB)		GDS-3502/3504: 20MHz/ 100MHz/ 200MHz/ 350MHz (-3dB)
Waveform Signal Process	Add, subtract, multiply, and divide waveforms, FFT, FFTrms
	FFT: Spectral magnitude.
	Set FFT Vertical Scale to Linear RMS or dBV RMS, and FFT Window to Rectangular, Hamming, Hanning or Blackman-Harris.Integration, Differentiation *: App installation required
Trigger
Source	2 CH model: CH1, CH2, Line, EXT
	4 CH model: CH1, CH2, CH3, CH4, Line, EXT
Trigger Mode	Auto (supports Roll Mode for 100 ms/div and slower), Normal, Single Sequence
Trigger Type	Edge, Pulse Width(Glitch), Video, Runt, Rise & Fall(Slope), Alternate, Event-Delay(1~65,535 events), Time-Delay(Duration ,10ns~10s),
	I²C, SPI, UART(optional)
	Runt: Trigger on a pulse that crosses one threshold but fails to cross a second threshold before crossing the first again.
	I²C (optional)
	Trigger on Start, Repeated Start, Stop, Missing ACK, Address (7 or 10 bit), Data, or Address and Data on I²C buses
	SPI (optional)
	Trigger on SS, MOSI, MISO, or MOSI and MISO on SPI buses
	UART (optional)
	Trigger on Tx Start Bit, Rx Start Bit, Tx End of Packet, Rx End of Packet, Tx Data, Rx Data, Tx Parity Error, and Rx Parity Error
Trigger Holdoff Range	10ns~10s
Coupling	AC, DC, LF rej., Hf rej., Noise rej.
Sensitivity	DC ~ 50MHz Approx. 1div or 10mV
	50MHz ~ 350MHz Approx. 1.5div or 15mV
EXT Trigger
Range	±15V
Sensitivity	DC ~ 150MHz Approx. 100mV ;150MHz ~ 250MHz Approx. 150mV 250MHz ~ 350MHz Approx. 150mV ;350MHz ~ 500MHz Approx. 200mV

Input Impedance	1MΩ±3%, ~16pF
Horizontal
Time base range	1ns/div ~ 100s/div (1-2-5 increments;GDS-3502/3504:1-2.5-5 increments); ROLL : 100ms/div ~ 100s/div
Pre-trigger	10 div maximum
Post-trigger	1,000 div
Time base accuracy	±20 ppm over any ≧1 ms time interval
X-Y Mode
X-Axis Input	Channel 1; Channel 3
Y-Axis Input	Channel 2; Channel 4
Phase Shift	±3° at 100kHz
Signal Acquisition
Real Time Sample Rate	2.5GSa/s	5GSa/s	2.5GSa/s	5GSa/s	5GSa/s	5GSa/s	4GSa/s	4GSa/s
ET Sample Rate	100GSa/s maximum for all models
Record Length	25k points/ channel
Acquisition Mode	Normal, Average, Peak detect, High resolution, Single
	Normal: Acquire sampled values.
	Average: From 2 ~256 waveforms included in average.
	Peak Detect: Captures glitches as narrow as 2 ns at all sweep speeds
	Hi Res: Real-time boxcar averaging reduces random noise and increases vertical resolution.
Cursors and Measurement
Cursors	Amplitude, Time, Gating available
Automatic Measurement	28 sets: Vpp , Vamp , Vavg , Vrms , Vhi , Vlo , Vmax , Vmin , Rise Preshoot/ Overshoot , Fall Preshoot/Overshoot, Freq , Period , Rise Time , Fall Time , Positive Width , Negative Width , Duty Cycle, Phase angle, and eight different delay measurements (FRR, FRF, FFR, FFF, LRR, LRF, LFR, LFF)
Cursors measurement	Voltage difference between cursors ( ∆V) Time difference between cursors ( ∆T)
Auto counter	6 digits, range from 2Hz minimum to the rated bandwidth
Power Measurements (option)
Power Quality	VRMS, VCrest Factor, Frequency, IRMS, ICrest Factor, True
Measurements	Power, Apparent power, Reactive power, Power factor, Phase angle.
Harmonics	Freq, Mag, Mag rms, Phase, THD-F, THD-R, RMS
Ripple Measurements	V ripple ,I ripple
In-rush current	First peak, Second peak
Control Panel Function
Autoset	Single-button, automatic setup of all channels for vertical, horizontal and trigger systems, with undo autoset
Auto-Range	Allow users to quickly move from test point to test point without having to reset the oscilloscope for each test point
Save Setup	20 set
Save Waveform	24 set
Display System
TFT LCD Type	8" TFT LCD SVGA color display
Display mode	YT ;XY
Display Resolution	800 horizontal × 600 vertical pixels (SVGA)
Interpolation	Sin(x)/x & Equivalent time sampling
Waveform Display	Dots, vectors, variable persistence, infinite persistence
Display Graticule	8 x 10 divisions
Display Brightness	Adjustable
Waveform capture rate	3500 waveform /sec real time
Interface
RS-232C	DB-9 male connector
USB Port	2 sets USB 2.0 High-speed host port ; 1 set USB High-speed 2.0 device port
Ethernet (LAN)Port	RJ-45 connector, 10/100Mbps
SVGA Video Port	DB-15 female connector, monitor output for display on SVGA monitors
GPIB	GPIB to USB Adapter (GUG-001 Option)
Go/NoGo BNC	5V Max/10mA TTL Open collector output
Internal flash disk	64MB
Kensington Style Lock	Rear-panel security slot connects to standard Kensington-style lock.
Line output	3.5mm stereo jack for Go/NoGo audio alarm
Power Source
Line Voltage range	AC 100V ~ 240V, 48Hz ~ 63Hz, Auto selection
operation environment	Temperature: 0°C to 50°C. Relative Humidity ≤ 80% at 40°C or below; ≤ 45% at 41°C ~ 50°C
Miscellaneous
Multi-language menu	Available
On-line help	Available
Time clock	Time and Data, Provide the Data/Time for saved data
Dimensions & Weight	400(W) X 200(H) X 130(D)mm, approx 4 kg

Máy hiện sóng số GWinstek GDS-3254 (250Mhz, 4 CH,5Gsa/s)

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